Crushing-machine.



J. WILLNBRS.

' GRUSHINGMAGHINB. APPLICATION FILED we. 31, 1911.

1,025,895. Patented May 7, 1912.

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J. WILLNERS.

ORUSHING MACHINE.

APPLIOATION FILED AUG. 31, 1911.

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COLUMBIA PLANDORAPH ce WASHINGTON. D. c.

J. WILLNERS. GRUSHING MACHINE. APPLIOATION IILED'AUG. a1, 1911.

1,025,895. v Patented May 7, 1912.

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COLUMBIA PLANOGRAPH 10., WASHINGTON, n. c.

UNITED STATES PATENT oFnioE.

JOHN WILLNERS, OF CHICAGO HEIGHTS, ILLINOIS, ASSIGNOR OF FIFTY-ONE O'NE-I-IUNDREDTHS- TO HORACE ARGO, OF CHICAGO, ILLINOIS.

CRUSI-IING-MACHINE.

' cago Heights, in the county of Cook and State of Illinois, haveinvented certain new and useful Improvements in Crushing-Machines, ofwhich the following is a specification.

This invention relates to a crusher especially adapted for crushingrock, ore, and other similar material.

The general principle of construction of the machine of the presentinvention comprises the use of a stationary member and a rotatingco-acting member adjacent the same, the crushing faces of the twomembers lying at an angle to each other so that as the crushing memberrotates, the rock or other similar material will be carried down into aspace of uniformly diminishing breadth, thus gradually breaking up thelarger pieces of material until they are of a size to fall through acomparatively small opening in the bottom portion of the machine.

It will be understood that in any form of crusher an extremely largeforce is exerted between the co-acting jaws. In designing a rotarycrusher, a serious problem is the arranging of the parts in such way asto take up the forces exerted on the rotating member. It would bedifficult and expensive to design a thrust bearing capable of taking upthese forces in a satisfactory manner.

One of the objects of this present invention is to provide a rotarycrusher of such construction that the forces on the rotating member canbe neutralized, as it were, with the result that the only end thrustwhich must be taken up by the shaft is any momentary difference in thethrusts which are exerted in opposite directions. In this way the sizeof the bearings can be greatly reduced and their arrangementcorrespondingly simplified, thus enabling me to produce a machine ofsmaller size and weight than would otherwise be necessary, and at asmaller cost.

Another object of the present invention is to make the working surfacesof the elements removable so that they can be changed from time to timeas they wear in service. The members which are actually subjected towear are thus replaceable and are supported by other members ofsufficient size Specification of Letters Patent.

Application filed August 31, 1911.

Patented May 7, 1912. Serial N0. 647,079.

and strength to withstand the enormous forces necessary. In this mannerit is possible to provide a machine in which the wearing portions may bealmostcompletely used up, and their thickness greatly diminished inservice, without weakening the machine to any appreciable extent. Inthis way also renewals can be made from time to time, and, therefore,the machine can be kept in the best possible operative condition.

Another object of the invention is to provide a structure in which thedistance between the co-acting jaws can be enlarged or reduced to thedesired amount, thereby regulating the size of rocks which can behandled, and also regulating the size of the pieces into which the rocksare broken. It is intended to so relate the parts that this adjustmentof size can be made in a very simple and effective manner, and Withoutthe necessity of disassembling the machines in any respect. At the sametime, means are provided for properly inclosing the working jaws at alltimes, regardless of their adjustment with respect to each other, so asto insure a proper movement of the rock or other material from theintake hopper to the discharge, and so as to prevent partly brokenpieces of material from being thrown about.

Other objects and uses will appear from a detailed description of theinvention, which consists in the features of construction andcombination of parts hereinafter described and claimed.

F igure 1 shows a side view of the machine having the inclosing casingremoved from one pair of the jaws; Fig. 2 shows a side view partly inelevation and partly in section having the inclosing casing removed fromone pair of jaws; Fig. 3 shows an end View of the completed machine;Fig. 4: shows a face view of one of the stationary jaw plates; Fig. 5shows a face view of one of the rotating jaw plates; Fig. 6 shows aperspective of one of the upper sections which is attached to thebracket; and Fig. 7 shows a perspective of one of the lower inclosingplates which is also attached to the bracket.

In the embodiment of my invention, I provide a rotating element, on eachend of which I mount a crushing member. Ad-

jacent each end of the rotating member I place a stationary member whichcarries a crushing member to co-act with the corresponding face of thestationary member. Means are then provided for guiding the rock or othermaterial down between the pairs of crushing members thus established,and the end thrusts on the rotating member are thereby balanced.

Referring now to the drawings, the rotating member 8 comprises a drum 9provided with end flanges 10 and mounted on or attached to a shaft 11.In the present instance, the drum, end flanges and shaft are formed froma single piece of material, but it will be understood that this issimply done for convenience, and that any other equivalent form ofconstruction might be substituted. A toothed rim 12, preferably in theform of a number of sections, is mounted between the end flanges and maybe bolted to them by bolts 13. Any suitable form of pinion or otherdrive may be used to engage the teeth 14 of the drum to drive the same.In the particular construction illustrated, the teeth are formedseparately from the drum and are mounted bet-ween flanges 15 of the rim12. These flanges and the entire rim are reinforced by a plurality ofwebs 16 which may be evenly spaced around the periphery of the rim.

On each of the flanges of the rotating member, I mount a circularremovable wearing member. The same preferably comprises four quadrantsections 17 such as shown in Fig. 5. The outer portion of each of thesecomprises a flange 18 through which pass the bolts 13. The centralportion 19 of each of these quadrants is preferably corrugated in orderto increase its efliciency, as will presently appear. It will beunderstood that when four sections are mounted on each end of the drum acomplete circular wearing face is presented, the same being corrugatedradially in its middle portion. As is well shown in Figs. 1 and 2, thecorrugated portion of this wearing surface projects outbeyond the flange18 to provide a circular shoulder 20.

Adjacent each end of the rotating member I mount an adjustable bracket21. The same comprises a substantially rectangular body portion 22 ofconsiderable thickness, reinforced near each side by a vertical web 23.

A bearing member 24 is provided at each end of the crusher. The samecomprises a bed 2-5 from the middle end portion of which projects ablock 26. The corresponding end of the shaft is ournaled in the upperend of this block, a removable cap 27 being provided for giving accessto the interior of the journal. The lower end of each of the webs 23 isprovided .with a tongue 28 which engages a corresponding groove 29 inthe bed 25.

7 It will be seen from the above construction that the bracket 21 can bemoved back and forth toward or away from the corresponding face of therotating member. In order to accomplish this result, I provide athreaded hole 30 in the central lower portion of the bracket and engagea threaded shaft 31 therewith. This shaft passes through the bearingblock 26 and is shouldered at the point 32 in order to provide an endthrust for moving the bracket in one direction. A hand wheel 33 ismounted on the outside end of the shaft, a block 34 spacing the sameaway from the journal block and providing an end thrust for pulling thebracket away from the rotating member when the shaft is turned in theproper direction. The portion of each end of the shaft is preferablytapered as shown.

It will be understood that a hole is provided in each bracket, thetapered portion of the shaft passing through this hole, so that thebracket surrounds the shaft in this portion. A wearing member 36 ismounted on the inner faceof each bracket, the same preferably comprisesfour quadrant sections 37 of the form shown in Fig. 4. Each of thesesections is provided with a radial tongue 38 which engages acorresponding groove in the face of the bracket. The four sections areslipped into their respective grooves until they meet to provide acircular wearing surface and then they are severally locked in suchposition by means of tap bolts 39. It will be understood that a certainamount of space or clearance must be left between the tapered portion ofthe shaft and the hole of the corresponding bracket. The amount of thisclearance will. depend upon the exact position of the bracket toward oraway from the rotating member. Under any circumstances, means should beprovided for preventing small port-ions of rock or other material fromgaining access to such clearance. For this purpose the inner radius ofthe wearing sections 37 is such as to provide a clearance 40 betweenthem and the shaft. Reference particularly to Fig. 5 will show the factthat the sections 17 of the rotating member are shouldered at 41 ontheir inner portions. A sleeve 42 surrounds the shaft in the portionbetween the stationary and rotating members, and sets back into therecess 41. This sleeve is of such length. and the recess 40 is of suchdepth that the sleeve and the wearing sections 37 will telescope as thebracket is moved back and forth, so that the recess 40 will be closed atall times. The sleeve also prevents wear on the shaft.

Although the forces on the two ends of the rotating member willordinarily balance, still I have provided a thrust block 4-3 in eachbearing for taking any small amount of unbalance which might occur, andfor keeping the rotating member always properly centered in the machine.It will be understood that the wearing surfaces of the rotating memberare corrugated while those of the stationary members or brackets are notnecessarily so. However, by setting the wearing surfaces substantiallyas shown so that the distance between them is smaller in their lowerthan in their upper portions, the rock and other material will naturallygravitate down between the crushing surfaces and will naturally becarried down by engaging with the corrugations of the rotating member.It will also be understood that the wear on the surfaces of the rotatingmember will be substantially uniform throughout their entire periphery.This is not necessarily so, however, in the case of the stationarysurfaces. Should they wear more rapidly in one portion than in another,the different sections may be readjusted with respect to each otherafter a time in order to compensate for such wear, and insure that allof the sections will be used up to their fullest extent in the end. Forexample, if it should be found that the lower sections would wear morecompletely than the upper sections, then the new quadrants might firstbe inserted in the upper grooves and afterward be transferred to thelower grooves when the lower sections had worn out and then a new set ofsections would be inserted in the upper grooves.

As before stated, means must be provided for retaining the rock or othermaterial between the crushing surfaces and for preventing it from beingthrown about. In order to accomplish this end, I have shown thefollowing construction. Two quadrant sections 44 are mounted on theupper portion of each bracket, and two quadrant sections 45 on the lowerportion of the same. Each of the sections 44 comprises a flange 46 of asize to fit easily around the periphery of the corresponding quadrantsection 37. This flange is carried by a body portion 47 having aninturned flange 48 which may be bolted to the side of the bracket, andhaving a flange 49 which seats on the upper face of the bracket and maybe likewise secured to the same. Each section 45 comprises a circularflange 50 attached to a flat portion 51 having a flange 52 which canalso be attached to the side of the bracket. A web 53 re-inforces eachof the upper sections, and a web 54 re-inforces each of the lowersections. It will. be understood that the two sections 44 and thesections 45 coact together to practically encircle the periphery of thewearing surface on the bracket. However, the upper edge 55 of eachsection 44 and the lower edge 56 of each section 45, is formed farenough to provide a space between the flanges of the upper sections anda corresponding space between the flanges of the lower sections. Theflanges 49 of the upper sections are carried out in their end portions57 a sufficient distance so that such portions will meet to inclose theoutside of the hole through which the material is passed into the spacebetween the jaws.

The flanges 46 and 50 of the upper and lower sections project out asuflicient dis tance from each bracket to overlie the periphery of thewearing surface at the corresponding end of the rotating member, whenthe bracket is moved up into its position closest to the rotatingmember. As the bracket is moved back to increase the space between thejaws, the amount of such overlying will decrease until finally a spacewill be left between the edge of the flanges and the wearing surface ofthe rotating member, as is well shown in the left-hand portion of Fig.2. Such space is there designated by the numeral 58. In order to inclosethis space, I have provided a stationary guard which surrounds therotating member, and overlies the flanges which are carried by thebracket. As shown in the several figures and particularly in Figs. 1 and3, this stationary guard is made in two similar sections 59. Each ofthese comprises a rim 60 of suitable diameter to overlie thecorresponding flange 10 of the rotating member, the rim portion of eachsection being supported by a web 61, the lower end 62 of which can bebolted to the base. This rim is inturned in its portion 63 and carries aflange 64 which overlies and fits loosely on the flanges which arecarried by the bracket.

The upper co-acting ends of the rims 60 carry the halves of a hopper 65,the outer end of which is joined together by bolted flanges 66. As isshown in Fig. 2, the 'upper ends 67 of the flanges 64 are cut back asuflicient distance to provide a space which co-acts with the spacebetween the two sections on the bracket, so that rock or other similarmaterial can drop immediately from the hopper down between the jaws.Iteferring still to Fig. 2 it will be seen that the hopper is of suchsize that the bracket may be moved out to its maximum distance and rockwill still be delivered to practically the entire space between theupper portions of the jaws. After each bracket has been adjusted intoany given position it may be locked by means of a pair of tap bolts 68which extend up into the grooves 29 and engage the tongues on the lowerends of the flanges of the bracket. In this way the threaded shaft isrelieved of the major portion of the thrusts, and the wear on it is thusreduced.

I wish particularly to emphasize the fact that by means of the doubleend construction herein shown and described, the end thrust on therotating member is counteri balanced, thus reducing the wear in thejournal boxes, and making it possible to secure the necessary strengthand rigidity of construction with a much smaller machine than otherwise.I would also call attention to the fact that by simply moving thebrackets back and forth, the size of the resulting product can beclosely regulated, the end thrust on the shaft being stillcounterbalanced. In this way both ends of the machine can be adjusted todeliver product of the same size, or they may be adjusted to deliver twoCllfilGIlt sizes of product simultaneously. For example, one end mightbe taking large blocks of rock and crushing the same into smallerpieces, while the other end of the machine might take these smallerpieces and crush them into still finer portions. These two processescould be going on simultaneously, the end thrust remainingcounterbalanced all the while.

It will be understood that I am not restricted to the particularconstruction herein shown and described except as I may limit myself bythe claims, but that I include within the scope of my invention allforms of equivalent construction for accomplishing substantially thesame result in substantially the same manner.

I claim:

1. In a crushing machine, the combination of a rotatable drum having acrushing element on each end thereof lying at substantially right anglesto the axis of rotation of said drum, and a stationary crushing elementadjacent each end of the said drum and having the plane of its facelying at an angle to the plane of the crushing element of the adjacentend of the drum and extending from top to bottom of the drum, and meansfor directly driving the said drum, substantially as described.

2. In a crushing machine, the combination of a rotatable drum having acrushing element on each end thereof lying in a plane at substantiallyright angles to the axis of rotation of said drum, and a stationarycrushing element adjacent each end of the said drum and having the planeof its face lying at an angle to the plane of the crushing element ofthe adjacent end of the drum and extending from top to bottom of thedrum, substantially as described.

3. In a crushing machine, the combination of a rotatable drum having theend faces thereof lying at substantially right angles to the axis ofrotation of said drum, a corrugated crushing element on each end of saiddrum and having the corrugations thereof lying in a plane substantiallyat right angles to the axis of rotation of the drum, a stationary membermounted adjacent each end of said drum, and an uncorrugated crushingelement carried by each stationary member adjacent the correspondingcrushing element of the drum and having the plane thereof lying at anangle to the plane of the corrugations of the adjacent end of the drumand extending from top to bottom of the drum, substantially asdescribed.

4. In a crushing machine, the combination of a rotatable drum having theend faces thereof lying at substantially right. angles to the axis ofrotation of the said drum, a crushing element carried by each end of thedrum and having the crushing face thereof also lying in a planesubstantially at right angles to the axis of rotation of the drum, abracket member adjustably mounted adjacent each end of the drum, and acrushing element carried by each bracket member adjacent thecorresponding crushing element of the drum, and having its crushing facelying in a plane at an angle to the plane of the crushing face of theadj acent end of the drum and extending from top to bottom of the drum,substantially as described.

5. In a crushing machine, the combina tion of a rotatable drum, acrushing member carried by each end of the same and having its crushingface lying in a plane at substantially right angles to the axis ofrotation of the drum, a stationary bracket mounted adjacent each end ofthe drum and having a substantially plane surface lying at an angle tothe plane of the crushing member on the adjacent end of the drum, and acrushing element secured to each stationary member on the plane surfacethereof and extending from top to bottom of the drum, substantially asdescribed.

6. In a crushing machine, the combination of a rotatable drum, acrushing element carried by each end thereof and lying at substantiallyright angles to the axis of rotation of the drum, a bracket adjustablymounted adjacent each end of the drum, a crushing element carried byeach bracket adjacent the corresponding element of the drum, and lyingin a plane at an acute angle to the axis of rotation of the drum, astationary hood member encircling each end of the drum and having anoutwardly projecting flange, a hopper carried by each stationary hoodmember in the upper portion of the same, and a flange carried by eachbracket and telescoping with the flange of the corresponding stationaryhood member, substantially as described.

7. In a crushing machine, the combination of a drum having a crushingsurface on each end thereof, a mounting in which the drum is free torotate, the said crushing surfaces lying in planes at substantiallyright angles to the axis of rotation of the drum, and a stationarymember adjacent each end of the drum and having a crushing face inco-active relationship to the crushing surdiminishing Width from top tobottom, subfaee of the adjacent end of the drum, and stantially asdescribed. extending substantially from top to bottom T of the diameterof the drum and lying at an JOHN VVILLB angle to the plane of thecrushing element vWitnesses:

of the adjacent end of the drum, whereby a THOMAS A. BANNING, J12,crushing space is provided of constantly MARY R. FROST.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

